/**

 @Name：layui.treeTable 树形表格操作
 @Author：Brant Liu
 @License：MIT
 */
layui.define(['laytpl', 'laypage', 'layer', 'form'], function(exports){
  "use strict";
  
  var $ = layui.$
  ,laytpl = layui.laytpl
  ,laypage = layui.laypage
  ,layer = layui.layer
  ,form = layui.form
  ,hint = layui.hint()
  ,device = layui.device()
  //外部接口
  ,treeTable = {
	config: {
		checkName: 'LAY_CHECKED' //是否选中状态的字段名
        ,indexName: 'LAY_TABLE_INDEX' //下标索引名
        ,localStorageItemKey:'LAY_TREE_TABLE_LOCAL_STORAGE_'
		,root:undefined
		,treeId:"id"
		,treeOrder:"id"
		,treeLevel:"level"
		,parentId:"parentId"
        ,hasChild:"hasChild"
		,treeExpand:true
		,treeExpandClass:"layui-treeGrid-expanded"
		,treeCollapseClass:"layui-treeGrid-collapse"
		,treeTrStyleShow:"display:table-row;"
		,treeTrStyleHide:"display:none;"
		,treeExpander:"<span class=\"layui-treeGrid-expander\"></span>"
		,treeIndent:"<span class=\"layui-treeGrid-indent\"></span>"
    } //全局配置项
	,cache: {} //数据缓存
    ,expanderCache:{}
    ,index: layui.treeTable ? (layui.treeTable.index + 10000) : 0
	//设置全局项
    ,set: function(options){
      var that = this;
      that.config = $.extend({}, that.config, options);
      return that;
    }
    
    //事件监听
    ,on: function(events, callback){
      return layui.onevent.call(this, MOD_NAME, events, callback);
    }
  }
  //操作当前实例
  ,thisTable = function(){
    var that = this
    ,options = that.config
    ,id = options.id;
	
    id && (thisTable.config[id] = options);

    return {
      reload: function(options){
        that.reload.call(that, options);
      }
      ,config: options
    }
  }
  //字符常量
  ,MOD_NAME = 'treeTable',ELEM = '.layui-table', THIS = 'layui-this', SHOW = 'layui-show', HIDE = 'layui-hide', DISABLED = 'layui-disabled', NONE = 'layui-none'
  
  ,ELEM_VIEW = 'layui-table-view', ELEM_HEADER = '.layui-table-header', ELEM_BODY = '.layui-table-body', ELEM_MAIN = '.layui-table-main', ELEM_FIXED = '.layui-table-fixed', ELEM_FIXL = '.layui-table-fixed-l', ELEM_FIXR = '.layui-table-fixed-r', ELEM_TOOL = '.layui-table-tool', ELEM_PAGE = '.layui-table-page', ELEM_SORT = '.layui-table-sort', ELEM_EDIT = 'layui-table-edit', ELEM_HOVER = 'layui-table-hover'
  
  //thead区域模板
  ,TPL_HEADER = function(options){
    var rowCols = '{{#if(item2.colspan){}} colspan="{{item2.colspan}}"{{#} if(item2.rowspan){}} rowspan="{{item2.rowspan}}"{{#}}}';
    
    options = options || {};
    return ['<table cellspacing="0" cellpadding="0" border="0" class="layui-table" '
      ,'{{# if(d.data.skin){ }}lay-skin="{{d.data.skin}}"{{# } }} {{# if(d.data.size){ }}lay-size="{{d.data.size}}"{{# } }} {{# if(d.data.even){ }}lay-even{{# } }}>'
      ,'<thead>'
      ,'{{# layui.each(d.data.cols, function(i1, item1){ }}'
        ,'<tr>'
        ,'{{# layui.each(item1, function(i2, item2){ }}'
          ,'{{# if(item2.fixed && item2.fixed !== "right"){ left = true; } }}'
          ,'{{# if(item2.fixed === "right"){ right = true; } }}'
          ,function(){
            if(options.fixed && options.fixed !== 'right'){
              return '{{# if(item2.fixed && item2.fixed !== "right"){ }}';
            }
            if(options.fixed === 'right'){
              return '{{# if(item2.fixed === "right"){ }}';
            }
            return '';
          }()
          ,'<th data-field="{{ item2.field||i2 }}" {{# if(item2.minWidth){ }}data-minwidth="{{item2.minWidth}}"{{# } }} '+ rowCols +' {{# if(item2.unresize){ }}data-unresize="true"{{# } }}>'
            ,'<div class="layui-table-cell laytable-cell-'
              ,'{{# if(item2.colspan > 1){ }}'
                ,'group'
              ,'{{# } else { }}'
                ,'{{d.index}}-{{item2.field || i2}}'
                ,'{{# if(item2.type !== "normal"){ }}'
                  ,' laytable-cell-{{ item2.type }}'
                ,'{{# } }}'
              ,'{{# } }}'
            ,'" {{#if(item2.align){}}align="{{item2.align}}"{{#}}}>'
              ,'{{# if(item2.type === "checkbox"){ }}' //复选框
                ,''
              ,'{{# } else { }}'
                ,'<span>{{item2.title||""}}</span>'
                ,'{{# if(!(item2.colspan > 1) && item2.sort){ }}'
                  ,'<span class="layui-table-sort layui-inline"><i class="layui-edge layui-table-sort-asc"></i><i class="layui-edge layui-table-sort-desc"></i></span>'
                ,'{{# } }}'
                ,'{{# if(item2.edit && (item2.edit == "text")){ }}'
                ,'<span class="layui-inline"><i class="iten-icon iten-edit"></i></span>'
                ,'{{# } }}'
              ,'{{# } }}'
            ,'</div>'
          ,'</th>'
          ,(options.fixed ? '{{# }; }}' : '')
        ,'{{# }); }}'
        ,'</tr>'
      ,'{{# }); }}'
      ,'</thead>'
    ,'</table>'].join('');
  }
  
  //tbody区域模板
  ,TPL_BODY = ['<table cellspacing="0" cellpadding="0" border="0" class="layui-table" '
    ,'{{# if(d.data.skin){ }}lay-skin="{{d.data.skin}}"{{# } }} {{# if(d.data.size){ }}lay-size="{{d.data.size}}"{{# } }} {{# if(d.data.even){ }}lay-even{{# } }}>'
    ,'<tbody></tbody>'
  ,'</table>'].join('')
  
  //主模板
  ,TPL_MAIN = ['<div class="layui-form layui-border-box {{d.VIEW_CLASS}}" lay-filter="LAY-table-{{d.index}}" style="{{# if(d.data.width){ }}width:{{d.data.width}}px;{{# } }} {{# if(d.data.height){ }}height:{{d.data.height}}px;{{# } }}">'
    
    ,'{{# if(d.data.toolbar){ }}'
    ,'<div class="layui-table-tool"></div>'
    ,'{{# } }}'
    
    ,'<div class="layui-table-box">'
      ,'{{# var left, right; }}'
      ,'<div class="layui-table-header">'
        ,TPL_HEADER()
      ,'</div>'
      ,'<div class="layui-table-body layui-table-main">'
        ,TPL_BODY
      ,'</div>'
      
      ,'{{# if(left){ }}'
      ,'<div class="layui-table-fixed layui-table-fixed-l">'
        ,'<div class="layui-table-header">'
          ,TPL_HEADER({fixed: true}) 
        ,'</div>'
        ,'<div class="layui-table-body">'
          ,TPL_BODY
        ,'</div>'      
      ,'</div>'
      ,'{{# }; }}'
      
      ,'{{# if(right){ }}'
      ,'<div class="layui-table-fixed layui-table-fixed-r">'
        ,'<div class="layui-table-header">'
          ,TPL_HEADER({fixed: 'right'})
          ,'<div class="layui-table-mend"></div>'
        ,'</div>'
        ,'<div class="layui-table-body">'
          ,TPL_BODY
        ,'</div>'
      ,'</div>'
      ,'{{# }; }}'
    ,'</div>'
    
    ,'{{# if(d.data.page){ }}'
    ,'<div class="layui-table-page">'
      ,'<div id="layui-table-page{{d.index}}"></div>'
    ,'</div>'
    ,'{{# } }}'
    
    ,'<style>'
    ,'{{# layui.each(d.data.cols, function(i1, item1){'
      ,'layui.each(item1, function(i2, item2){ }}'
        ,'.laytable-cell-{{d.index}}-{{item2.field||i2}}{ '
        ,'{{# if(item2.width){ }}'
          ,'width: {{item2.width}}px;'
        ,'{{# } }}'
        ,' }'
      ,'{{# });'
    ,'}); }}'
    ,'</style>'
  ,'</div>'].join('')
  
  ,_WIN = $(window)
  ,_DOC = $(document)
  
  ,Class = function(options){
    var that = this;
    that.index = ++treeTable.index;
    that.config = $.extend({}, that.config, treeTable.config, options);
    that.render();
  };
  
  Class.prototype.render = function(){
	var that = this
    ,options = that.config;
	
	options.elem = $(options.elem);
    options.where = options.where || {};
    options.id = options.id || options.elem.attr('id');
	
    //请求参数的自定义格式
    options.request = $.extend({
      pageName: 'page'
      ,limitName: 'limit'
    }, options.request)
    
    //响应数据的自定义格式
    options.response = $.extend({
      statusName: 'code'
      ,statusCode: 0
      ,msgName: 'msg'
      ,dataName: 'data'
      ,countName: 'count'
    }, options.response);
	
	if(!options.elem[0]) return that;
	
	that.setArea(); //动态分配列宽高
	
	//开始插入替代元素
    var othis = options.elem
    ,hasRender = othis.next('.' + ELEM_VIEW)
    
    //主容器
    ,reElem = that.elem = $(laytpl(TPL_MAIN).render({
      VIEW_CLASS: ELEM_VIEW
      ,data: options
      ,index: that.index //索引
    }));
    
    options.index = that.index;
    
    //生成替代元素
    hasRender[0] && hasRender.remove(); //如果已经渲染，则Rerender
    othis.after(reElem);
    
    //各级容器
    that.layHeader = reElem.find(ELEM_HEADER);
    that.layMain = reElem.find(ELEM_MAIN);
    that.layBody = reElem.find(ELEM_BODY);
    that.layFixed = reElem.find(ELEM_FIXED);
    that.layFixLeft = reElem.find(ELEM_FIXL);
    that.layFixRight = reElem.find(ELEM_FIXR);
    that.layTool = reElem.find(ELEM_TOOL);
    
    that.layTool.html(
      laytpl($(options.toolbar).html()||'').render(options)
    );
    
    if(options.height) that.fullSize(); //设置body区域高度
    
    //如果多级表头，则填补表头高度
    if(options.cols.length > 1){
      var th = that.layFixed.find(ELEM_HEADER).find('th');
      th.height(that.layHeader.height() - 1 - parseFloat(th.css('padding-top')) - parseFloat(th.css('padding-bottom')));
    }
    
	//请求数据
	that.pullData(that.page);
	that.events();
  };
  
  //根据列类型，定制化参数
  Class.prototype.initOpts = function(item){
    var that = this,
    options = that.config
    ,initWidth = {
      checkbox: 48
      ,space: 15
      ,numbers: 40
    };
    
    //让 type 参数兼容旧版本
    if(item.checkbox) item.type = "checkbox";
    if(item.space) item.type = "space";
    if(!item.type) item.type = "normal";
    
    if(item.type !== "normal"){
      item.unresize = true;
      item.width = item.width || initWidth[item.type];
    }
  };
  
  //动态分配列宽高
  Class.prototype.setArea = function(){
    var that = this,
    options = that.config
    ,colNums = 0 //列个数
    ,autoColNums = 0 //自动列宽的列个数
    ,autoWidth = 0 //自动列分配的宽度
    ,countWidth = 0 //所有列总宽度和
    ,cntrWidth = options.width || function(){ //获取容器宽度
      //如果父元素宽度为0（一般为隐藏元素），则继续查找上层元素，直到找到真实宽度为止
      var getWidth = function(parent){
        var width, isNone;
        parent = parent || options.elem.parent()
        width = parent.width();
        try {
          isNone = parent.css('display') === 'none';
        } catch(e){}
        if(parent[0] && (!width || isNone)) return getWidth(parent.parent());
        return width;
      };
      return getWidth();
    }();
    
    //统计列个数
    that.eachCols(function(){
      colNums++;
    });
    
    //减去边框差
    cntrWidth = cntrWidth - function(){
      return (options.skin === 'line' || options.skin === 'nob') ? 2 : colNums + 1;
    }();

    //遍历所有列
    layui.each(options.cols, function(i1, item1){
      layui.each(item1, function(i2, item2){
        var width;

        if(!item2){
          item1.splice(i2, 1);
          return;
        }
        
        that.initOpts(item2);
        width = item2.width || 0;
        
        if(item2.colspan > 1) return;

        if(/\d+%$/.test(width)){
          item2.width = width = Math.floor((parseFloat(width) / 100) * cntrWidth);
        } else if(!width){ //列宽未填写
          item2.width = width = 0;
          autoColNums++;
        }
        
        countWidth = countWidth + width;
      });
    });
    
    that.autoColNums = autoColNums; //记录自动列数
    
    //如果未填充满，则将剩余宽度平分。否则，给未设定宽度的列赋值一个默认宽
    (cntrWidth > countWidth && autoColNums) && (
      autoWidth = (cntrWidth - countWidth) / autoColNums
    );
    
    layui.each(options.cols, function(i1, item1){
      layui.each(item1, function(i2, item2){
        var minWidth = item2.minWidth || options.cellMinWidth;
        if(item2.colspan > 1) return;
        if(item2.width === 0){
          item2.width = Math.floor(autoWidth >= minWidth ? autoWidth : minWidth); //不能低于设定的最小宽度
        }
      });
    });
    
    //高度铺满：full-差距值
    if(options.height && /^full-\d+$/.test(options.height)){
      that.fullHeightGap = options.height.split('-')[1];
      options.height = _WIN.height() - that.fullHeightGap;
    }
  };

  //事件处理
  Class.prototype.events = function(){
    var that = this
    ,options = that.config
    ,_BODY = $('body')
    ,dict = {}
    ,th = that.layHeader.find('th')
    ,resizing
    ,ELEM_CELL = '.layui-table-cell'
    ,filter = options.elem.attr('lay-filter');

    //拖拽调整宽度
    th.on('mousemove', function(e){
      var othis = $(this)
      ,oLeft = othis.offset().left
      ,pLeft = e.clientX - oLeft;
      if(othis.attr('colspan') > 1 || othis.data('unresize') || dict.resizeStart){
        return;
      }
      dict.allowResize = othis.width() - pLeft <= 10; //是否处于拖拽允许区域
      _BODY.css('cursor', (dict.allowResize ? 'col-resize' : ''));
    }).on('mouseleave', function(){
      var othis = $(this);
      if(dict.resizeStart) return;
      _BODY.css('cursor', '');
    }).on('mousedown', function(e){
      var othis = $(this);
      if(dict.allowResize){
        var field = othis.data('field');
        e.preventDefault();
        dict.resizeStart = true; //开始拖拽
        dict.offset = [e.clientX, e.clientY]; //记录初始坐标
        
        that.getCssRule(field, function(item){
          var width = item.style.width || othis.outerWidth();
          dict.rule = item;
          dict.ruleWidth = parseFloat(width);
          dict.minWidth = othis.data('minwidth') || options.cellMinWidth;
        });
      }
    });
    //拖拽中
    _DOC.on('mousemove', function(e){
      if(dict.resizeStart){
        e.preventDefault();
        if(dict.rule){
          var setWidth = dict.ruleWidth + e.clientX - dict.offset[0];
          if(setWidth < dict.minWidth) setWidth = dict.minWidth;
          dict.rule.style.width = setWidth + 'px';
          layer.close(that.tipsIndex);
        }
        resizing = 1
      }
    }).on('mouseup', function(e){
      if(dict.resizeStart){
        dict = {};
        _BODY.css('cursor', '');
        that.scrollPatch();
      }
      if(resizing === 2){
        resizing = null;
      }
    });
    
    //复选框选择
    that.elem.on('click', 'input[name="layTableCheckbox"]+', function(){
		var checkbox = $(this).prev()
		,childs = that.layBody.find('input[name="layTableCheckbox"]')
		,index = checkbox.parents('tr').eq(0).data('index')
		,checked = checkbox[0].checked
		,isAll = checkbox.attr('lay-filter') === 'layTableAllChoose';
		//全选
		childs.each(function(i, item){
			if(i != index){
			  item.checked = false;
			  that.setCheckData(i, false);
			  that.renderForm('checkbox');
			}
		});
		that.setCheckData(index, checked);
		that.syncCheckAll();
		layui.event.call(this, MOD_NAME, 'checkbox('+ filter +')', {
			checked: checked
			,data: treeTable.cache[that.key] ? (treeTable.cache[that.key][index] || {}) : {}
			,type: isAll ? 'all' : 'one'
		});
    });

	//折叠展开
	that.layBody.on('click','span.layui-treeGrid-expander', function(){
		var othis = $(this).parents("tr"),
		thisId = othis.data("id"),
		ids = [];
		function treeExpand(ids,thisId,flag){
			var child = $(".layui-treeGrid-parent-"+thisId);
			if(child.length > 0){
                if(child.length == 1){
                    ids.push(child.data("id"));
                    if(flag){
                        treeExpand(ids,child.data("id"));
                    }
                }else{
                    $.each(child,function(index,item){
                        ids.push($(this).data("id"));
                        if(flag){
                            treeExpand(ids,$(this).data("id"));
                        }
                    });
                }
            }
		}
		function expandHide(ids){
			$.each(ids,function(i,item){
				var _this = $(".layui-treeGrid-"+item);
				_this.css("display","none");
			});
		}
		function expandShow(ids){
			$.each(ids,function(i,item){
				var _this = $(".layui-treeGrid-"+item);
				if(_this.hasClass(options.treeCollapseClass) || _this.hasClass(options.treeExpandClass)){
					_this.css("display","table-row");
				}
				if($(".layui-treeGrid-"+_this.data("parentid")).hasClass(options.treeExpandClass) && (!_this.hasClass(options.treeExpandClass) && !_this.hasClass(options.treeCollapseClass))){
					_this.css("display","table-row");
				}
			});
		}

		// 展开
		if(othis.hasClass(options.treeCollapseClass)){
            treeExpand(ids,thisId,false);
            that.addExpanderCache(thisId);
			othis.removeClass(options.treeCollapseClass).addClass(options.treeExpandClass);
			expandShow(ids);
		}else{
            treeExpand(ids,thisId,true);
            that.removeExpanderCache(thisId);
			expandHide(ids);
			othis.removeClass(options.treeExpandClass).addClass(options.treeCollapseClass);
		}
	});
	
    //行事件
    that.layBody.on('mouseenter', 'tr', function(){
      var othis = $(this)
      ,index = othis.index();
      that.layBody.find('tr:eq('+ index +')').addClass(ELEM_HOVER);

    }).on('mouseleave', 'tr', function(){
      var othis = $(this)
      ,index = othis.index();
      that.layBody.find('tr:eq('+ index +')').removeClass(ELEM_HOVER)
    });

    //单元格编辑
    that.layBody.on('change', '.'+ELEM_EDIT, function(e){
        e.preventDefault();
      var othis = $(this)
      ,value = this.value
      ,field = othis.parent().data('field')
      ,index = othis.parents('tr').eq(0).data('index')
      ,data = treeTable.cache[that.key][index];
      
      data[field] = value; //更新缓存中的值
      
      layui.event.call(this, MOD_NAME, 'edit('+ filter +')', {
        value: value
        ,data: data
        ,field: field
        ,othis:othis.parents('tr').eq(0)
        ,index: index
      });
    }).on('blur', '.'+ELEM_EDIT, function(){
      var templet
      ,othis = $(this)
      ,field = othis.parent().data('field')
      ,index = othis.parents('tr').eq(0).data('index')
      ,data = treeTable.cache[that.key][index];
      that.eachCols(function(i, item){
        if(item.field == field && item.templet){
          templet = item.templet;
        }
      });
      othis.siblings(ELEM_CELL).html(
        templet ? laytpl($(templet).html() || this.value).render(data) : this.value
      );
      othis.parent().data('content', this.value);
      othis.remove();
    });
    
    //单元格事件
    that.layBody.on('click', 'td', function(){
      var othis = $(this)
      ,field = othis.data('field')
      ,editType = othis.data('edit')
      ,elemCell = othis.children(ELEM_CELL);
      
      layer.close(that.tipsIndex);
      if(othis.data('off')) return;
      
      //显示编辑表单
      if(editType){
        if(editType === 'select') { //选择框
          // var select = $('<select class="'+ ELEM_EDIT +'" lay-ignore><option></option></select>');
          // othis.find('.'+ELEM_EDIT)[0] || othis.append(select);
        } else { //输入框
          var input = $('<input class="layui-input '+ ELEM_EDIT +'">');
          input[0].value = othis.data('content') || elemCell.text();
          othis.find('.'+ELEM_EDIT)[0] || othis.append(input);
          input.focus();
        }
        return;
      }
      
      //如果出现省略，则可查看更多
      if(elemCell.find('.layui-form-switch,.layui-form-checkbox')[0]) return; //限制不出现更多（暂时）
      
      if(Math.round(elemCell.prop('scrollWidth')) > Math.round(elemCell.outerWidth())){
        that.tipsIndex = layer.tips([
          '<div class="layui-table-tips-main" style="margin-top: -'+ (elemCell.height() + 16) +'px;'+ function(){
            if(options.size === 'sm'){
              return 'padding: 4px 15px; font-size: 12px;';
            }
            if(options.size === 'lg'){
              return 'padding: 14px 15px;';
            }
            return '';
          }() +'">'
            ,elemCell.html()
          ,'</div>'
          ,'<i class="layui-icon layui-table-tips-c">&#x1006;</i>'
        ].join(''), elemCell[0], {
          tips: [3, '']
          ,time: -1
          ,anim: -1
          ,maxWidth: (device.ios || device.android) ? 300 : 600
          ,isOutAnim: false
          ,skin: 'layui-table-tips'
          ,success: function(layero, index){
            layero.find('.layui-table-tips-c').on('click', function(){
              layer.close(index);
            });
          }
        });
      }
    });
    
    //工具条操作事件
    that.layBody.on('click', '*[lay-event]', function(){
      var othis = $(this)
      ,index = othis.parents('tr').eq(0).data('index')
      ,tr = that.layBody.find('tr[data-index="'+ index +'"]')
      ,ELEM_CLICK = 'layui-table-click'
      ,data = treeTable.cache[that.key][index];
      layui.event.call(this, MOD_NAME, 'tool('+ filter +')', {
        data: treeTable.clearCacheKey(data)
        ,event: othis.attr('lay-event')
        ,tr: tr
        ,del: function(){
          treeTable.cache[that.key][index] = [];
          tr.remove();
          that.scrollPatch();
        }
        ,update: function(fields){
          fields = fields || {};
          layui.each(fields, function(key, value){
            if(key in data){
              var templet, td = tr.children('td[data-field="'+ key +'"]');
              data[key] = value;
              that.eachCols(function(i, item2){
                if(item2.field == key && item2.templet){
                  templet = item2.templet;
                }
              });
              td.children(ELEM_CELL).html(
                templet ? laytpl($(templet).html() || value).render(data) : value
              );
              td.data('content', value);
            }
          });
        }
      });
      tr.addClass(ELEM_CLICK).siblings('tr').removeClass(ELEM_CLICK);
    });
    
    //同步滚动条
    that.layMain.on('scroll', function(){
      var othis = $(this)
      ,scrollLeft = othis.scrollLeft()
      ,scrollTop = othis.scrollTop();
      
      that.layHeader.scrollLeft(scrollLeft);
      that.layFixed.find(ELEM_BODY).scrollTop(scrollTop);
      
      layer.close(that.tipsIndex);
    });
    
    _WIN.on('resize', function(){ //自适应
       that.fullSize();
       that.scrollPatch();
    });
  };

  //获取cssRule
  Class.prototype.getCssRule = function(field, callback){
    var that = this
    ,style = that.elem.find('style')[0]
    ,sheet = style.sheet || style.styleSheet || {}
    ,rules = sheet.cssRules || sheet.rules;
    layui.each(rules, function(i, item){
      if(item.selectorText === ('.laytable-cell-'+ that.index +'-'+ field)){
        return callback(item), true;
      }
    });
  };
  
  //铺满表格主体高度
  Class.prototype.fullSize = function(){
    var that = this
    ,options = that.config
    ,height = options.height, bodyHeight;
    
    if(that.fullHeightGap){
      height = _WIN.height() - that.fullHeightGap;
      if(height < 135) height = 135;
      that.elem.css('height', height);
    }

    //tbody区域高度
    bodyHeight = parseFloat(height) - parseFloat(that.layHeader.height()) - 1;  
    if(options.toolbar){
      bodyHeight = bodyHeight - that.layTool.outerHeight();
    }
    that.layMain.css('height', bodyHeight);
  };
  
  //获得数据
  Class.prototype.pullData = function(curr, loadIndex){
    var that = this
    ,options = that.config
    ,request = options.request
    ,response = options.response;
    
    that.startTime = new Date().getTime(); //渲染开始时间
    
    if(options.url){ //Ajax请求
      var params = {};
      params[request.pageName] = curr;
      params[request.limitName] = options.limit;
      
      $.ajax({
        type: options.method || 'get'
        ,url: options.url
        ,data: $.extend(params, options.where)
        ,dataType: 'json'
        ,success: function(res){
          if(res[response.statusName] != response.statusCode){
            that.renderForm();
            return that.layMain.html('<div class="'+ NONE +'">'+ (res[response.msgName] || '返回的数据状态异常') +'</div>');
          }
          that.renderData(res, curr, res[response.countName]);
          options.time = (new Date().getTime() - that.startTime) + ' ms'; //耗时（接口请求+视图渲染）
          loadIndex && layer.close(loadIndex);
          typeof options.done === 'function' && options.done(res, curr, res[response.countName]);
        }
        ,error: function(e, m){
          that.layMain.html('<div class="'+ NONE +'">数据接口请求异常</div>');
          that.renderForm();
          loadIndex && layer.close(loadIndex);
        }
      });
    } else if(options.data && options.data.constructor === Array){ //已知数据
      var res = {}
      ,startLimit = curr*options.limit - options.limit
      
      res[response.dataName] = options.data.concat().splice(startLimit, options.limit);
      res[response.countName] = options.data.length;

      that.renderData(res, curr, options.data.length);
      typeof options.done === 'function' && options.done(res, curr, res[response.countName]);
    }
  };
  
  Class.prototype.treeData = function(data, tree, parentId, level){
	var that = this
    ,options = that.config,
	level = level || 0;
	if (Object.prototype.toString.call(data) != '[object Array]')
		data = [data];
	var items = [];
	$.each(data, function (_, item) {
		if (item[options.parentId] == parentId){
			item[options.treeLevel] = level;
			items.push(item);
		}
	});
	items.sort(function (a, b) {
		var x = a[options.treeOrder],
			y = b[options.treeOrder];
		return x == y ? 0 : (x > y ? 1 : -1);
	});
	if (items.length > 0) {
		$.each(items, function (_, item) {
			tree.push(item);
			that.treeData(data, tree, item[options.treeId], level + 1);
		});
	}
  };
  
  Class.prototype.treeLabel = function(html,max){
	  if(max <= 0){
		  return;
	  }
	  var htmlJoin = "";
	  for(var i=0;i<max;i++){
		  htmlJoin += html;
	  }
	  return htmlJoin;
  };
  
  Class.prototype.renderData = function(res, curr, count, sort){
	var that = this
    ,options = that.config
    ,data = res[options.response.dataName] || []
    ,trs = []
    ,trs_fixed = []
    ,trs_fixed_r = []
    ,treeData = [];
    that.treeData(data,treeData,options.root,0);

	//渲染视图
    var render = function(){
		var treeIndent = "";
		layui.each(treeData, function(i1, item1){
			var tds = [], tds_fixed = [], tds_fixed_r = []
			,numbers = i1 + options.limit*(curr - 1) + 1,treeTrClass = "layui-treeGrid-"; //序号
			
			if(item1.length === 0) return;
			
			if(item1[options.treeId]){
				treeTrClass += item1[options.treeId];
			}
			if(item1[options.parentId]){
				treeTrClass += " layui-treeGrid-parent-" + item1[options.parentId];
			}
			that.eachCols(function(i3, item3){
			  var field = item3.field || i3, content = item1[field]
			  ,cell = that.getColElem(that.layHeader, field);
			  
			  if(content === undefined || content === null) content = '';
			  if(item3.colspan > 1) return;
			  
			  //td内容
			  var td = ['<td data-field="'+ field +'" '+ function(){
				var attr = [];
				if(item3.edit) attr.push('data-edit="'+ item3.edit +'"'); //是否允许单元格编辑
				if(item3.align) attr.push('align="'+ item3.align +'"'); //对齐方式
				if(item3.templet) attr.push('data-content="'+ content +'"'); //自定义模板
				if(item3.toolbar) attr.push('data-off="true"'); //自定义模板
				if(item3.event) attr.push('lay-event="'+ item3.event +'"'); //自定义事件
				if(item3.style) attr.push('style="'+ item3.style +'"'); //自定义样式
				if(item3.minWidth) attr.push('data-minwidth="'+ item3.minWidth +'"'); //单元格最小宽度
				return attr.join(' ');
			  }() +'>'
				,'<div class="layui-table-cell laytable-cell-'+ function(){ //返回对应的CSS类标识
				  var str = (options.index + '-' + field);
				  return item3.type === 'normal' ? str 
				  : (str + ' laytable-cell-' + item3.type);
				}() +'">' + function(){
				  var tplData = $.extend(true, {
					LAY_INDEX: numbers
				  }, item1);
				  
				  //渲染复选框列视图
				  if(item3.type === 'checkbox'){
					return '<input type="checkbox" name="layTableCheckbox" lay-skin="primary" '+ function(){
					  var checkName = treeTable.config.checkName;
					  //如果是全选
					  if(item3[checkName]){
						item1[checkName] = item3[checkName];
						return item3[checkName] ? 'checked' : '';
					  }
					  return tplData[checkName] ? 'checked' : '';
					}() +'>';
				  } else if(item3.type === 'numbers'){ //渲染序号
					return numbers;
				  }
				  
				  var treeShow = item3.treeShow || ( i3 === 1);
				  if(treeShow && item1[options.parentId]){
					  treeIndent = that.treeLabel(options.treeIndent,item1[options.treeLevel]);
					  if(treeData[i1 + 1] && (item1[options.treeId] == treeData[i1 + 1][options.parentId])){
						  content = treeIndent + options.treeExpander + " " + content;
					  }else{
						  content = treeIndent + " " + content;
					  }
				  }else if(treeShow && !item1[options.parentId]){
					  if(treeData[i1 + 1] && (item1[options.treeId] == treeData[i1 + 1][options.parentId])){
						  content = options.treeExpander + " " + content;
					  }
				  }
				  
				  //解析工具列模板
				  if(item3.toolbar){
					return laytpl($(item3.toolbar).html()||'').render(tplData);
				  }
				  
				  return item3.templet ? laytpl($(item3.templet).html() || String(content)).render(tplData) : content;
				}()
			  ,'</div></td>'].join('');
			  
			  tds.push(td);
			  if(item3.fixed && item3.fixed !== 'right') tds_fixed.push(td);
			  if(item3.fixed === 'right') tds_fixed_r.push(td);
			});
			
			var treeControlClass = options.treeExpand ? options.treeExpandClass : options.treeCollapseClass,
			treeControlStyle = "";

			if((!item1[options.parentId] && item1[options.hasChild]) || (item1[options.parentId] && item1[options.hasChild])){
                treeTrClass += " " + treeControlClass;
            }
            if(item1[options.parentId]){
                treeControlStyle = options.treeExpand ? options.treeTrStyleShow : options.treeTrStyleHide;
            }
			trs.push('<tr data-index="'+ i1 +'" class="'+ treeTrClass +'" style="'+ treeControlStyle +'" data-id="'+ item1[options.treeId] +'" data-parentId="'+ item1[options.parentId] +'">'+ tds.join('') + '</tr>');
			trs_fixed.push('<tr data-index="'+ i1 +'">'+ tds_fixed.join('') + '</tr>');
			trs_fixed_r.push('<tr data-index="'+ i1 +'">'+ tds_fixed_r.join('') + '</tr>');
		});

		that.layBody.scrollTop(0);
		that.layMain.find('.'+ NONE).remove();
		that.layMain.find('tbody').html(trs.join(''));
		that.layFixLeft.find('tbody').html(trs_fixed.join(''));
		that.layFixRight.find('tbody').html(trs_fixed_r.join(''));

		that.renderForm();
		that.syncCheckAll();
		that.haveInit ? that.scrollPatch() : setTimeout(function(){
		that.scrollPatch();
		}, 50);
		that.haveInit = true;
		layer.close(that.tipsIndex);
        that.initExpanderCache();
	};
	that.key = options.id || options.index;
    treeTable.cache[that.key] = treeData; //记录数据
	
	if(data.length === 0){
      that.renderForm();
      that.layFixed.remove();
      that.layMain.find('tbody').html('');
      that.layMain.find('.'+ NONE).remove();
      return that.layMain.append('<div class="'+ NONE +'">无数据</div>');
    }
	
	render();
  };
  
  //找到对应的列元素
  Class.prototype.getColElem = function(parent, field){
    var that = this
    ,options = that.config;
    return parent.eq(0).find('.laytable-cell-'+ (options.index + '-' + field) + ':eq(0)');
  };
  
  //渲染表单
  Class.prototype.renderForm = function(type){
    form.render(type, 'LAY-table-'+ this.index);
  };

  Class.prototype.initExpanderCache = function(){
    var that = this
        ,options = that.config;
    var cacheKey = options.id || options.index;
      var value = localStorage.getItem(cacheKey);
      if(null == value){
          return;
      }
      var valueArray = value.split('-');
      for(var i=0,len=valueArray.length;i < len;i++){
          $(".layui-treeGrid-"+valueArray[i]).removeClass(options.treeCollapseClass).addClass(options.treeExpandClass);
          $(".layui-treeGrid-parent-"+valueArray[i]).css("display","table-row");
      }
  };

  Class.prototype.addExpanderCache = function(item){
      var that = this
          ,options = that.config;
      var cacheKey = options.id || options.index;
      var value = localStorage.getItem(cacheKey);
      if(null == value){
          localStorage.setItem(cacheKey,item);
          return;
      }
      localStorage.setItem(cacheKey,value + "-" +item);
  };
  Class.prototype.removeExpanderCache = function(item){
      var that = this
          ,options = that.config;
      var cacheKey = options.id || options.index;
      var value = localStorage.getItem(cacheKey);
      if(null == value){
          return;
      }
      var valueArray = value.split('-');
      if(valueArray.length == 1){
          localStorage.removeItem(cacheKey);
          return;
      }
      for(var i=0;i<valueArray.length;i++){
          if(valueArray[i] == item){
              valueArray.splice(i,1);
          }
      }
      if(valueArray.length == 0){
          localStorage.removeItem(cacheKey);
      }else if(valueArray.length == 1){
          localStorage.setItem(cacheKey,valueArray[0]);
      }else{
          localStorage.setItem(cacheKey,valueArray.join('-'));
      }
  };

  //同步选中值状态
  Class.prototype.setCheckData = function(index, checked){
    var that = this
    ,options = that.config
    ,thisData = treeTable.cache[that.key];
    if(!thisData[index]) return;
    if(thisData[index].constructor === Array) return;
    thisData[index][options.checkName] = checked;
  };
  
  //同步全选按钮状态
  Class.prototype.syncCheckAll = function(){
    var that = this
    ,options = that.config
    ,checkAllElem = that.layHeader.find('input[name="layTableCheckbox"]')
    ,syncColsCheck = function(checked){
      that.eachCols(function(i, item){
        if(item.type === 'checkbox'){
          item[options.checkName] = checked;
        }
      });
      return checked;
    };
    
    if(!checkAllElem[0]) return;

    if(treeTable.checkStatus(that.key).isAll){
      if(!checkAllElem[0].checked){
        checkAllElem.prop('checked', true);
        that.renderForm('checkbox');
      }
      syncColsCheck(true);
    } else {
      if(checkAllElem[0].checked){
        checkAllElem.prop('checked', false);
        that.renderForm('checkbox');
      }
      syncColsCheck(false);
    }
  };
  
  //遍历表头
  Class.prototype.eachCols = function(callback){
    var cols = $.extend(true, [], this.config.cols)
    ,arrs = [], index = 0;

    //重新整理表头结构
    layui.each(cols, function(i1, item1){
      layui.each(item1, function(i2, item2){
        //如果是组合列，则捕获对应的子列
        if(item2.colspan > 1){
          var childIndex = 0;
          index++
          item2.CHILD_COLS = [];
          layui.each(cols[i1 + 1], function(i22, item22){
            if(item22.PARENT_COL || childIndex == item2.colspan) return;
            item22.PARENT_COL = index;
            item2.CHILD_COLS.push(item22);
            childIndex = childIndex + (item22.colspan > 1 ? item22.colspan : 1);
          });
        }
        if(item2.PARENT_COL) return; //如果是子列，则不进行追加，因为已经存储在父列中
        arrs.push(item2)
      });
    });

    //重新遍历列，如果有子列，则进入递归
    var eachArrs = function(obj){
      layui.each(obj || arrs, function(i, item){
        if(item.CHILD_COLS) return eachArrs(item.CHILD_COLS);
        callback(i, item);
      });
    };
    
    eachArrs();
  };
  
  //滚动条补丁
  Class.prototype.scrollPatch = function(){
    var that = this
    ,layMainTable = that.layMain.children('table')
    ,scollWidth = that.layMain.width() - that.layMain.prop('clientWidth') //纵向滚动条宽度
    ,scollHeight = that.layMain.height() - that.layMain.prop('clientHeight') //横向滚动条高度
    ,getScrollWidth = that.getScrollWidth(that.layMain[0]) //获取主容器滚动条宽度，如果有的话
    ,outWidth = layMainTable.outerWidth() - that.layMain.width(); //表格内容器的超出宽度

    //如果存在自动列宽，则要保证绝对填充满，并且不能出现横向滚动条
    if(that.autoColNums && outWidth < 5 && !that.scrollPatchWStatus){
      var th = that.layHeader.eq(0).find('thead th:last-child')
      ,field = th.data('field');
      that.getCssRule(field, function(item){
        var width = item.style.width || th.outerWidth();
        item.style.width = (parseFloat(width) - getScrollWidth - outWidth) + 'px';
        
        //二次校验，如果仍然出现横向滚动条
        if(that.layMain.height() - that.layMain.prop('clientHeight') > 0){
          item.style.width = parseFloat(item.style.width) - 1 + 'px';
        }

        that.scrollPatchWStatus = true;
      });
    }
    
    if(scollWidth && scollHeight){
      if(!that.elem.find('.layui-table-patch')[0]){
        var patchElem = $('<th class="layui-table-patch"><div class="layui-table-cell"></div></th>'); //补丁元素
        patchElem.find('div').css({
          width: scollWidth
        });
        that.layHeader.eq(0).find('thead tr').append(patchElem)
      }
    } else {
      that.layHeader.eq(0).find('.layui-table-patch').remove();
    }
    
    //固定列区域高度
    var mainHeight = that.layMain.height()
    ,fixHeight = mainHeight - scollHeight;
    that.layFixed.find(ELEM_BODY).css('height', layMainTable.height() > fixHeight ? fixHeight : 'auto');
    
    //表格宽度小于容器宽度时，隐藏固定列
    that.layFixRight[outWidth > 0 ? 'removeClass' : 'addClass'](HIDE); 
    
    //操作栏
    that.layFixRight.css('right', scollWidth - 1); 
  };
  
  //获取滚动条宽度
  Class.prototype.getScrollWidth = function(elem){
    var width = 0;
    if(elem){
      width = elem.offsetWidth - elem.clientWidth;
    } else {
      elem = document.createElement('div');
      elem.style.width = '100px';
      elem.style.height = '100px';
      elem.style.overflowY = 'scroll';

      document.body.appendChild(elem);
      width = elem.offsetWidth - elem.clientWidth;
      document.body.removeChild(elem);
    }
    return width;
  };

  //表格重载
  Class.prototype.reload = function(options){
      var that = this;
      if(that.config.data && that.config.data.constructor === Array) delete that.config.data;
      that.config = $.extend({}, that.config, options);
      that.render();
  };
  
  //表格重载
  thisTable.config = {};
  treeTable.reload = function(id, options){
      var config = thisTable.config[id];
      options = options || {};
      if(!config) return hint.error('The ID option was not found in the table instance');
      if(options.data && options.data.constructor === Array) delete config.data;
      return treeTable.render($.extend(true, {}, config, options));
  };
  
  //核心入口
  treeTable.render = function(options){
    var inst = new Class(options);
    return thisTable.call(inst);
  };  
  
  //清除临时Key
  treeTable.clearCacheKey = function(data){
    data = $.extend({}, data);
    delete data[treeTable.config.checkName];
    delete data[treeTable.config.indexName];
    return data;
  };
  
  exports(MOD_NAME, treeTable);
});

 
